Any real performance gains are made by increasing the size of the air collector and the input pipe. The difference in cross-sectional area of the 60mm inlet pipe is almost 80% greater than the original pipe and as such gets a lot more air into the filter box....
The 'wait one hour' message needs the ignition on and the radio on for it to go away, till that message has gone, and you are back to the 'Code' prompt you will not be able to input a code and unlock the radio...